Thread-tightening device for reeling and other textile machines.



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m m rum I103]!!! AIIIJOATIII Ill-II Ill. 11. 1000.

1mm: to: ammo hunted Fob. 8, 1910.

I an 110mm to belt yarn through. especially bv raw silk.

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H UNITED "STATES A ENT OFFICE.

leetleattea et' lettera Iatrat.

l'tt t ettt ed Feb. 8. I010.

Anlteattea am Iareh 11. "0|. lertal lo. 338:.

2b all it my cum:

Be It ltnown that 1. Jan: Smtwrrrntt, n ettiarn of the SwineConfederatitm. and retident of llorgrn. near Zurich, Switzerland, haveinvented certain new and useful lmrovemettts in 'lhmd-lightening Devicesor Rlt'illl audpther Textile )laeltimm, of which the ollowm tea am-ilieatiou.

In reehng-, trim ingatnl other textile mnehtnea there are used, as arule. thread-tight: etttng devieea, the object of which is to give tothe thread to he reeled or wound on. on the one hand. a uniform tensionand to etleet. on the other hand. a uniform teedin or ndmislion, of thename to the reel. lie-e thread tihtetnnsdericea rouaiat. as a rule. ofmetal grula. cat ting into each other t-rtatawise. mid movided with anydesired number of teeth.

ween whirh the thread in guided. tine ot' the grida can moved toward andaway from the other and atanda under the action of a weight. There metalteeth however. have the drawback that. althou l they are hardened. therare eaady attached by the artitlcia and twine. and can t ten not bettaltd any in r. A further drawharlt of the aaid devioea that the eiaeof their brakingattrhoa cannot he lated aa demanded by the dilerentaorta o rt:-

present invert ion aims at removing that: drawbaeka'by melting theteethof the "The draw Itg illttatrateu two eample forms 0! eouatrttction ofthe thread tightening der oe.

F r. l and 2 are wide views, Fig. 8 in a .3... on the line A-ll ofFig. 1. ru 4 to 6 ahow three vierra ot a rid. Fig. n I a aection on theline (L- i of Ft ll.

F 7 and ti are ive views 0 the M v can be men lrom Flt!- 4, formed ofheut alata or rails whieh. as shown in Fig. I. may

l receive between them the lit-enlinrly shaped teeth 4' whit-h nroprefernb nmde of porn lt in or glass. In order to reliably journaltlteseteeth. the grids 1.- nntl f, as shown itt Figs. 5 and ti. possessl't't't'al' into whit'h lit the projections in arranged on the hook ofthe teeth. lint it is to be romnriu-d tltut the teeth may uuite 8H wellbe without projeetiona or he provided with l't'tt'hN's' tnto whichonter'the tmrres mnding elevations or l tlfltitlltof their holders. Thelnnvulilo 'rid or holder f 'stunds. in a manner nlrendy ii'nm'tn. underthe notion of u weight or spring it. ill order to nntke the teetht'nnttmtously rent ugninst the tltrend 0.

III the emtstrnetimt shown in Fig. .l llt'ttitlog or tetmintting teethare lttl'tll llt'ti in sets or units eotoprisiug three teeth to n set orunit. and in this instant-e too sets of teeth lttn united with eneltother. nnl they are fustened on their holders v und 1' by metnl plutes pund by st'rewn 4. For thi purpoae the teeth are provided withhl'l'tW-ittlit'h t (Fig. Bl. 'l'hese teeth |mssess besides these severalprojet-tions m. if the thrend to he worked run only tmnl u slightsiren-hing. all that is lttt't'rv-ttt') is to remove one or net'- eralteeth and thereby ntljust the tightening derive for the renta-etirethrend.

In Figs. 7 and 8 are shown the teeth used for the nttid sample forms oft-on tritt-tion on an enlarged aenle. from whit-h-ttrerythiug furtherwill at om-e be seen.

Instead of the teeth united with tttt'it other there may also he usedsingle teeth without changing the e-sentinl feature of the invention.

What I claim us my invention and desire to aeeure by United h'tntesLetters l'ttteut is:

l. A thn-atl to sioning device comprising a holder. tooth-unit undclumping menna .iltdepentlent (it mid tooth ttnits tvlt'tttttthlyareuriu raid tooth-units individually upon the hoh er.

9. tht'rttd tetntioning devioe oomptidttg a holder, tooth-units. andmeans l't'it'ttrtttidy aeeuri tatid tooth-unite iudivnhntlly upon theluiifleta'aaid menus tauupriaiug settle on tatid holder andelntnpingmenns holding tot snitl nnita upon their sents.

it. A thread tensioni'ng devit-e eomprtstug n holder. tooth-units. andmenus relensnbl Ht't'lll'illfl nuid tooth-unite imlivitluully upon theholder. snid tut-mm t'ttlll n'ising sents on "Ito suid holder and pringt :unping means he provided with clamping-spring It which i holding saidunits upon their seats.

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4. A thread tensinnin device comprising between and overlapping theadjacent units.- a holder provided Wiit recema, forming said meansqomprisinp a U-shnped memher, .5 seats, tooth-units. pro'u'tiuns securedtherethe end portions bent outwardly in opposite to and adapted tn t inmid neat. and directions and arranged to overlap the admeans releuahlywcltl'ing mid nniN on the I jncent units and releaubly lecure them onholder. the holder.

5. A thread tensimlingfdevice comprising The foregoin s -ification si edat, Zua holder, tooth-units, and means intermwd rielnSwitzerlnm t til 2dday of fin", 1009. l l

lwtwqen and m'erln in the adjacent units t whereby the nnid 'zl'mlf arewit-muddy w JEAN SCHWLUPR" In Plt'flt'llttt' nl'- t'lllfil on thollttitit'l'. I i I I 0. A lln'a-ud tvmwmng tit't'lt't' cmnpmmg Wmltwamurrsm,

J. Smuncn.

a holder, math-units. and momm lntm-pnwd

